Can't access dashboard

[Guest]

[Xatruch]

After making a port forwarding rule, this happens every time,  I can't access the management URL, I can ping the IP with no problems, the internet goes down as well, everything else seems to be working just fine, this just happens when I make a port forwarding rule.

Any ideas? been looking for a solution, but apparently I am the only one with this issue.

Thank you

[kikilinux]

maybe it is very helpful if u just take ur port forwarding rule